JP5889556B2 - Fire hose rampage prevention device - Google Patents
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- JP5889556B2 JP5889556B2 JP2011150371A JP2011150371A JP5889556B2 JP 5889556 B2 JP5889556 B2 JP 5889556B2 JP 2011150371 A JP2011150371 A JP 2011150371A JP 2011150371 A JP2011150371 A JP 2011150371A JP 5889556 B2 JP5889556 B2 JP 5889556B2
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Description
本発明は、消防用ホースの破断による危険を回避するための暴れ防止装置に関する。 The present invention relates to a rampage prevention device for avoiding danger due to breakage of a fire hose.
消防隊による消火活動において、消防車から火点まで消防用ホースを延長し、消火剤を確実に送る必要がある。
つまり、消防用ホースと消防車の吐出口、消防用ホースと放水ノズル、および、消防用ホース同士は結合金具によって連結され、そして、消防車からの加圧された水または泡がそれらを通って、放水ノズルに送られ、消火などのために放出される。
In fire fighting activities by the fire brigade, it is necessary to extend the fire hose from the fire truck to the fire point and send the fire extinguisher reliably.
In other words, the fire hose and fire engine outlet, the fire hose and water discharge nozzle, and the fire hose are connected to each other by a fitting, and pressurized water or foam from the fire engine passes through them. , Sent to the water discharge nozzle and discharged for fire extinguishing.
消防用ホースは、消防法の規定に基づき、消防用ホースの技術上の規格を定める省令により定められており、消防用ゴム引きホース、消防用麻ホース、消防用濡れホース、消防用保形ホース及び大容量泡放水砲用ホースに区分される。
消防用ゴム引きホースとは、ジャケットにゴムまたは合成樹脂の内張りを施した消防用ホースをいう。消防用麻ホースとは、麻糸に織られた消防用ホースをいう。消防用濡れホースとは、水流によりホース全体が均一に濡れる消防用ホースをいう。消防用保形ホースとは、ホースの断面が常時円形に保たれる消防用ホースをいう。大容量泡放水砲用ホースとは、石油コンビナート等災害防止法施行令に規定する大容量泡放水砲用防災資器材としての用途にのみ用いられる消防用ホースをいう。
Fire hoses are stipulated by ministerial ordinances that define technical standards for fire hoses based on the Fire Service Act. And large capacity foam cannons.
The rubberized hose for fire fighting refers to a fire hose with a jacket or rubber or synthetic resin lining. Fire fighting hemp hose is fire fighting hose woven in hemp thread. A fire-resistant wet hose is a fire-resistant hose in which the entire hose is evenly wetted by water flow. A fire-fighting hose is a fire-fighting hose whose cross section is always kept circular. The large-capacity foam cannon hose is a fire hose that is used only as a disaster prevention equipment for large-capacity foam cannons as stipulated in the Ordinance for Enforcement of the Disaster Prevention Act such as petroleum complex.
消防車に使用される消防用ホースは、消防用ゴム引きホースが主流である。消防用ゴム引きホースもジャケット種やホースの加工方法等により種類がある。全合繊ジャケットホースや天然繊維ジャケットホースならびに、コーティッドホースやカバードホースなどの表面加工したゴム引きホースと、ダブルジャケットホースなどが挙げられるが、図５に示すように、構造上基本的にジャケット、ライニング、コーティングの３つの要素から構成されている。
図５（ａ）はホースの要部横断面図、図５（ｂ）はホースの要部縦断面図である。
ジャケット１０１は、ホースの本体となる繊維製の円筒状織物で、内部の圧力を耐える役目を果す横糸１０２と長さ方向の強度を保つ縦糸１０３からなる。ライニング１０４は、ジャケット１０１の裏面に貼り付け、漏水防止の役目を果すゴム張りの部分であり、コーティング１０５は、ジャケット１０１の摩耗や劣化を防ぎ、吸水を減らす目的で、ゴムまたはプラスチックスでホースの表面を覆う部分である。
また、消防用ホース同士を繋ぐ結合金具のほとんどは、日本においては、町野式と呼ばれた差込式の結合金具である。
The mainstream of fire hoses used in fire trucks is rubberized hoses for fire fighting. There are also various types of rubberized hoses for firefighting depending on the type of jacket and hose processing method. Examples include synthetic fiber jacket hoses, natural fiber jacket hoses, surface-treated rubberized hoses such as coated hoses and covered hoses, and double jacket hoses. As shown in FIG. It consists of three elements: lining and coating.
FIG. 5A is a cross-sectional view of the main part of the hose, and FIG. 5B is a vertical cross-sectional view of the main part of the hose.
The jacket 101 is a fiber cylindrical woven fabric that is a main body of the hose, and includes a weft yarn 102 that plays a role of enduring internal pressure and a warp yarn 103 that maintains strength in the length direction. The lining 104 is attached to the back surface of the jacket 101 and is a rubber-coated portion that serves to prevent water leakage. The coating 105 is a hose made of rubber or plastics for the purpose of preventing wear and deterioration of the jacket 101 and reducing water absorption. This is the part that covers the surface.
Moreover, most of the coupling fittings that connect the fire hoses are plug-in coupling fittings called the Machino style in Japan.
ジャケット１０１は繊維製の円筒状織物なので、軽量で柔軟であり、取り扱いやすい。一方、良好な操作性を持つ反面、消火活動中、ホースが地面の鋭利な突起物にぶつかったり、建物から落下したガラス片などに刺さったりすることによって、ホースが破断することも少なくはない。 Since the jacket 101 is a fiber-made cylindrical fabric, it is lightweight and flexible and easy to handle. On the other hand, while having good operability, the hose often breaks during a fire fighting activity when it hits a sharp projection on the ground or pierces a piece of glass dropped from a building.
一方、近年、水と泡の放射が簡単に切り替えられ、Ａ火災とＢ火災を効率よく対応できる圧縮空気泡消火システム（ＣＡＦＳ）を搭載する消防車が増えている。ＣＡＦＳ車は従来のポンプ車よりさまざまな火災に対応でき、効率よく消火できる反面、圧縮空気泡を使用しているため、加圧の状態でホースが破裂した場合では、高いエネルギーを持つ圧縮空気の噴出でホースが完全に断裂されることも考えられる。そうなると、ホースが大きく暴れ、周囲の人に危害を加える恐れがある。
従って、圧縮空気泡の放射や、排煙用の圧縮エアーの放射に使われる消防用ホースにおいては、特にホースの断裂時の対策が重要である。
On the other hand, in recent years, the number of fire engines equipped with a compressed air bubble extinguishing system (CAFS) that can easily switch between radiation of water and bubbles and efficiently handle A fire and B fire has increased. CAFS vehicles can cope with various fires than conventional pump vehicles and can extinguish efficiently, but use compressed air bubbles, so if the hose ruptures under pressure, compressed air with high energy can be used. It is also possible that the hose is completely torn by the eruption. If this happens, the hose may go wild and cause harm to the people around you.
Therefore, in the case of fire hoses used for the emission of compressed air bubbles and the emission of compressed air for flue gas, it is particularly important to take measures when the hose is broken.
特許文献１は、一種類の送水ホースの暴れ防止装置を提示したが、その対象は大容量泡放水砲に使われた大流量の送水ホースであり、また、ホースの断裂による暴れを想定しなかった。 Patent Document 1 presents one type of water hose rampage prevention device, but the target is a large flow rate water hose used for large-capacity foam cannons and does not assume rampage due to hose rupture. It was.
ホースの断裂による暴れを防止する根本的な方法は、ホースの断裂を防止することである。例えば、ホースの製造段階から、ホースの縦糸に強度の強い繊維を使用するなどの対策を採ることが挙げられる。しかし、ＣＡＦＳ車に使われている既存の消防用ホースをすべて強度の強いホースに取り替えることは、自治体消防にとっては膨大な財政負担となるため、現実的な対策とは言えない。経済的な方法で現行のホースを強化し、ジャケットが断裂しても、ホースが大きく暴れない対策が求められている。 The fundamental way to prevent rampage due to hose tearing is to prevent hose tearing. For example, it is possible to take measures such as using a strong fiber for the warp of the hose from the manufacturing stage of the hose. However, replacing all existing fire hoses used in CAFS cars with strong hoses is a huge financial burden for local fire fighters, and is not a realistic measure. There is a demand for measures to strengthen the current hose in an economical manner and prevent the hose from being largely exposed even if the jacket is torn.
そこで本発明は、圧縮空気泡の輸送に使われる既存の消防用ホースを買い替えることなく、低コストで断裂時のホース暴れを防止し、周囲に与える危険を最小限に抑える消防ホースの暴れ防止装置を提供する。 Accordingly, the present invention provides a fire hose rampage prevention device that prevents the hose rampage at the time of rupture at a low cost and minimizes the risk to the surroundings without replacing the existing fire hose used for transporting compressed air bubbles. I will provide a.
上記の課題を解決するために創案された本発明の消防用ホースの暴れ防止装置は、両端にそれぞれ金具を有し、消防用ホース内に配置されるロープと、ロープの両端に設けられる一対の係止具と、からなり、係止具が、端部が重なり合うＣ型のリングであり、一方の端部が拡張斜面上部を、他方の端部が拡張斜面下部を構成し、拡張斜面上部と拡張斜面下部との密着により、リングを拡径することで、係止具を金具に固着させて用いることを特徴とする。 The fire hose rampage prevention device of the present invention, which was created to solve the above problems, has a metal fitting at each end, a rope disposed in the fire hose, and a pair of ropes provided at both ends of the rope. The locking tool is a C-shaped ring with overlapping end portions, one end portion constituting the upper portion of the extended slope, and the other end portion constituting the lower portion of the extended slope, The engagement tool is fixed to the metal fitting by expanding the diameter of the ring by close contact with the lower portion of the extended slope .
本発明に係る消防用ホースの暴れ防止装置によれば、既存のＣＡＦＳ車に使用される消防用ホースを買い替えることなく、低コストでホース断裂時の暴れを抑えることができる。 According to the fire hose rampage prevention device according to the present invention, rampage at the time of hose breakage can be suppressed at low cost without replacement of a fire hose used for an existing CAFS vehicle.
以下、本発明の実施の形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図１は、消防用ホースの暴れ防止装置を模式的に示す。図１に示すように、消防用ホース１の差し金具２と受け金具３の内周面に、消防用ホース１の中を通すロープ４で繋いだ係止具（リング）５をそれぞれ嵌め込んで固定する。消防用ホース１のジャケットが破裂し、圧縮空気の噴き出しにより断裂に至った場合、ロープ４に引っ張られるため、大きく暴れることがない。よって、周囲に与える危険が低減できる。 FIG. 1 schematically shows a fire hose rampage prevention device. As shown in FIG. 1, fittings (rings) 5 connected with a rope 4 passing through the fire hose 1 are fitted into the inner peripheral surfaces of the metal fitting 2 and the receiving metal fitting 3 of the fire hose 1. Fix it. When the jacket of the fire hose 1 is ruptured and is ruptured by the jet of compressed air, it is pulled by the rope 4 so that it does not run out greatly. Therefore, the danger given to the surroundings can be reduced.
図２は、同消防用ホースの暴れ防止装置の断面図を示す。差し金具２と受け金具３の内径が同じ寸法であり、また、相互に隙間がほとんどないため、段差によるリング５の固定はできない。
また、すでに消防用ホース１のジャケットと一体化された差し金具２と受け金具３（以下、金具）に対して、消防署などの現場での機械加工が困難であるため、金具２、３に金属加工を実施せず、現場でも簡単に装着できるリング５が望ましい。
なお、本実施の形態では、消防用ホース１の両端には、金具２、３を有するもので説明するが、金具は放水ノズルであってもよい。
FIG. 2 is a sectional view of the fire hose rampage prevention device. Since the inner diameter of the insertion fitting 2 and the receiving fitting 3 is the same size, and there is almost no gap between them, the ring 5 cannot be fixed by a step.
In addition, the metal fittings 2 and 3 are made of metal on the metal fittings 2 and 3 because the metal fittings 2 and the metal fittings 3 (hereinafter referred to as metal fittings) that are already integrated with the jacket of the fire hose 1 are difficult to machine at the fire station or other sites. The ring 5 that can be easily mounted on the site without performing processing is desirable.
In this embodiment, the fire hose 1 is described as having the metal fittings 2 and 3 at both ends, but the metal fitting may be a water discharge nozzle.
図３は、金具２、３を再加工せず、現場でも簡単に取り付けられる拡張式の係止具（リング）５を示す。自己拡張性を持つリング５は、拡張斜面上部５２と拡張斜面下部５３との上下二つの斜面を持つC形の構造で、上下二つの斜面のねじりにより、装着前、リング５の外径は金具２、３の内径よりやや小さくなるように製造できる。また、拡張斜面上部５２にねじを通す貫通孔５１とロープ孔６を設け、拡張斜面下部５３にメネジ孔５４を加工する。 FIG. 3 shows an expandable locking device (ring) 5 that can be easily installed in the field without reworking the metal fittings 2 and 3. The ring 5 having self-expandability is a C-shaped structure having two upper and lower slopes, an upper slope 52 and a lower slope 53, and the outer diameter of the ring 5 is a metal fitting before mounting by twisting the two slopes. It can be manufactured to be slightly smaller than a few inner diameters. Further, a through hole 51 and a rope hole 6 through which a screw is passed are provided in the extended slope upper portion 52, and a female screw hole 54 is processed in the extended slope lower portion 53.
図４は、リングの装着状態を示す。リング５を金具２、３の内孔に入れてから、拡張ねじ５５を、拡張斜面上部５２にある貫通孔５１を通して、拡張斜面下部５３にあるメネジ孔５４にねじり込み、拡張斜面上部５２と拡張斜面下部５３を密着させる。そうすることにより、リング５が円周方向に延び、直径が大きくなる。よって、金具２、３の内径に密着する。 FIG. 4 shows the ring mounted state. After the ring 5 is inserted into the inner holes of the metal fittings 2 and 3, the expansion screw 55 is screwed into the female screw hole 54 in the expansion slope lower portion 53 through the through hole 51 in the expansion slope upper portion 52, The lower slope 53 is brought into close contact. By doing so, the ring 5 extends in the circumferential direction and the diameter increases. Therefore, the metal fittings 2 and 3 are in close contact with the inner diameter.
そのほかに、リング５の外径を金具２、３の内径よりやや大きく加工する。リング５を嵌め込む際、金具２、３を加熱する。また、リング５を冷却してから嵌め込む方法も考えられる。
また、ロープ孔６の位置はリング５の軸線上ではなく、円周寄りの位置に設けることが望ましい。それによって、リング５がロープ４に引っ張られた時、非対称の力により、リング５がより強く金具２、３に固着することができる。
異種金属間の電蝕を避けるため、リング５は金具２、３と同じ材質の使用が望ましい。
In addition, the outer diameter of the ring 5 is processed to be slightly larger than the inner diameters of the metal fittings 2 and 3. When fitting the ring 5, the metal fittings 2 and 3 are heated. Moreover, the method of inserting after cooling the ring 5 is also considered.
Further, it is desirable that the position of the rope hole 6 is not on the axis of the ring 5 but at a position closer to the circumference. Thereby, when the ring 5 is pulled by the rope 4, the ring 5 can be firmly fixed to the metal fittings 2 and 3 by the asymmetric force.
The ring 5 is preferably made of the same material as the metal fittings 2 and 3 in order to avoid electric corrosion between different metals.
また、耐酸性と耐アルカリ性および電蝕防止の観点から、ロープ４の材質は高分子材料を使用することが望ましい。例えば、アラミド繊維（ケプラ）、ＰＢＯ（ポリパラフェニレンベンズオキサゾール）繊維（ザイロン）、超高強力ポリエチレン繊維（ダイニーマ）などを使用する。
また、高強度と高弾性率の観点から、パラ系アラミド繊維、ポリエチレン繊維、ポリアリレート繊維、ＰＢＯ（ポリパラフェニレンベンズオキサゾール）繊維、炭素繊維を、高耐熱性の観点から、メタ系アラミド繊維、ＰＰＳ（ポリフェニレンサルファイド）繊維、ポリイミド繊維、フッ素繊維を、不燃性の観点からガラス繊維などを使用する
Further, from the viewpoints of acid resistance, alkali resistance and prevention of electrolytic corrosion, it is desirable that the rope 4 is made of a polymer material. For example, an aramid fiber (kepla), a PBO (polyparaphenylene benzoxazole) fiber (Zylon), an ultra-high strength polyethylene fiber (Dyneema), or the like is used.
In addition, from the viewpoint of high strength and high elastic modulus, para-aramid fiber, polyethylene fiber, polyarylate fiber, PBO (polyparaphenylene benzoxazole) fiber, carbon fiber, from the viewpoint of high heat resistance, meta-aramid fiber, PPS (polyphenylene sulfide) fiber, polyimide fiber, fluorine fiber, glass fiber, etc. are used from the viewpoint of nonflammability.
以上、本発明の一実施形態に係る消防用ホース１の暴れ防止装置について説明を行ったが、リング５の設置方法には種々の変更を施すことが可能である。例えば、上記に示した実施形態では、リング５の外径は金具２、３の内径より数十μm程度大きくなるように加工し、温度差で金具２、３に嵌め込む（焼バメ）方法を採っているが、金具２、３の内面とリング５の外面にねじ加工を施し、ねじり込むこともできる。 As mentioned above, although the ramp-up prevention apparatus of the fire hose 1 which concerns on one Embodiment of this invention was demonstrated, various changes can be made to the installation method of the ring 5. FIG. For example, in the embodiment shown above, a method is employed in which the outer diameter of the ring 5 is processed to be about several tens of μm larger than the inner diameter of the metal fittings 2 and 3 and is fitted into the metal fittings 2 and 3 due to a temperature difference. However, the inner surfaces of the metal fittings 2 and 3 and the outer surface of the ring 5 can be threaded and screwed in.
既存の消防用ホース１の金具２、３に、外径５７．０２〜５７．０７ｍｍに加工したリング５を焼バメの方法で嵌め合い、その消防用ホース１内に太さ１．５ｍｍ程度、断面積として約７ｍｍ２のザイロン材質のロープ４を通して、それぞれの金具２、３に嵌め合ったリング５のロープ孔６につながる。ザイロンの引張強さは５．８Ｇｐａを有し、太さ１．５ｍｍほどのロープ４は約４０００ｋｇの引っ張る力に耐えられる。よって、消防用ホース１は破損し、圧縮空気泡、または空気の噴出しで消防用ホース１が断裂しても、消防用ホース１内を通すロープ４に抑えられ、大きく暴れることがなく、消防用ホース１の断裂による危険を低減できる。 A ring 5 processed to an outer diameter of 57.02 to 57.07 mm is fitted into the metal fittings 2 and 3 of the existing fire hose 1 by a shrinking method, and the thickness of the fire hose 1 is about 1.5 mm. Through a rope 4 made of a xylon material having a cross-sectional area of about 7 mm 2 , it is connected to a rope hole 6 of a ring 5 fitted to each metal fitting 2, 3. The tensile strength of Zylon is 5.8 Gpa, and the rope 4 having a thickness of about 1.5 mm can withstand a pulling force of about 4000 kg. Therefore, even if the fire hose 1 is damaged and the fire hose 1 is torn due to compressed air bubbles or air jets, the fire hose 1 is restrained by the rope 4 that passes through the fire hose 1 and is not greatly violated. The risk of rupture of the hose 1 can be reduced.
本発明は、既存の消防用ホースに用いることができる消防用ホースの暴れ防止装置であり、特に圧縮空気泡の放射や、排煙用の圧縮エアーの放射に使われる消防用ホースに適している。 The present invention is a fire hose rampage prevention device that can be used for an existing fire hose, and is particularly suitable for a fire hose used for radiation of compressed air bubbles or compressed air for smoke emission. .
１ 消防用ホース
２ 差し金具
３ 受け金具
４ ロープ
５ 係止具（リング）
６ ロープ孔
５１ 貫通孔
５２ 拡張斜面上部
５３ 拡張斜面下部
５４ メネジ孔
５５ 拡張ネジ
DESCRIPTION OF SYMBOLS 1 Fire hose 2 Insert metal fitting 3 Receiving metal fitting 4 Rope 5 Locking tool (ring)
6 Rope hole 51 Through-hole 52 Expansion slope upper part 53 Expansion slope lower part 54 Female thread hole 55 Expansion screw
Claims (9)
前記消防用ホース内に配置されるロープと、
前記ロープの両端に設けられる一対の係止具と、
からなり、
前記係止具が、端部が重なり合うＣ型のリングであり、
一方の前記端部が拡張斜面上部を、他方の前記端部が拡張斜面下部を構成し、
前記拡張斜面上部と前記拡張斜面下部との密着により、前記リングを拡径することで、前記係止具を前記金具に固着させて用いることを特徴とする消防用ホースの暴れ防止装置。 A fire hose rampage prevention device with metal fittings at both ends,
A rope disposed in the fire hose;
A pair of locking tools provided at both ends of the rope;
Consists of
The locking device is a C-shaped ring with overlapping ends;
One of the ends constitutes the upper part of the extended slope, and the other end constitutes the lower part of the extended slope,
The fire hose rampage prevention device , wherein the locking tool is fixed to the metal fitting by expanding the diameter of the ring by close contact between the upper part of the extended slope and the lower part of the extended slope .
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| Application Number | Priority Date | Filing Date | Title |
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| JP2011150371A JP5889556B2 (en) | 2011-07-06 | 2011-07-06 | Fire hose rampage prevention device |
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| JP2011150371A JP5889556B2 (en) | 2011-07-06 | 2011-07-06 | Fire hose rampage prevention device |
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| JP5889556B2 true JP5889556B2 (en) | 2016-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE690748C (en) * | 1936-06-27 | 1940-05-06 | Hugo Stender | Fuse for hose connections, in which the hose nozzle by a special member, z. B. wire rope connected |
| JPS5427608Y2 (en) * | 1975-10-31 | 1979-09-07 | ||
| JPH0515673Y2 (en) * | 1987-12-14 | 1993-04-23 | ||
| JPH0231992U (en) * | 1988-08-24 | 1990-02-28 | ||
| JPH0560270A (en) * | 1991-08-26 | 1993-03-09 | Ueda Yoshiharu | Elevated hose delivering device |
| JP3764677B2 (en) * | 2001-12-27 | 2006-04-12 | 横浜市 | Two-fluid fire extinguisher |
| US20070202329A1 (en) * | 2006-02-24 | 2007-08-30 | Davis Gregory A | Ropes having improved cyclic bend over sheave performance |
| JP4820677B2 (en) * | 2006-03-30 | 2011-11-24 | 櫻護謨株式会社 | Water hose rampage prevention device |
| JP2008256042A (en) * | 2007-04-03 | 2008-10-23 | Toyox Co Ltd | Flexible reinforced hose |
| DE202009014031U1 (en) * | 2009-10-16 | 2009-12-24 | Manitowoc Crane Group France Sas | Synthetic rope as a carrier for cranes and other hoists |
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